Effect of Various Parameters for Trapping Red Palm Weevil (Rhynchophorus ferrugineus L) in Date Palm Orchards at Khairpur Mir’s Sindh, Pakistan
Effect of Various Parameters for Trapping Red Palm Weevil (Rhynchophorus ferrugineus L) in Date Palm Orchards at Khairpur Mir’s Sindh, Pakistan
Ranjhan Junejo1*, Shahabuddin Memon1, Muhammad Usman Shar2, Ayaz Ali Memon1 and Fakhar-un-Nisa Memon3
ABSTRACT
The red palm weevil (Rhynchophorus ferrugineus L) is an important pest for date palm plantation in all over the world. The present study deals with the optimization of different parameters for trapping of red palm weevil by utilizing pheromone traps. Different field trials have been performed at district Khairpur Mir’s, Sindh-Pakistan. Therefore, different field trials have been performed at date palm orchards of district Khairpur Mir’s, Sindh-Pakistan. During the field trials, various parameters such as aggregation pheromone (ferrugineol; 4-methyl-5-nonanol+ 4-methyl-5-nonanone), kairomone (Ethyl acetate, EA) dosages, effect of date fodder, trap density, the effect of trap color and seasonal changes have been optimized. From the results, it has been revealed that the traps baited with 300 g of date fodder, captured more adult red palm weevil as compared to the traps without date fodder. In addition, 3 mg/trap/day pheromone dose and 5 mg/trap/ day EA captured the maximum number of adult red palm weevils and effective trap density was found to be 11 traps/ha, while further higher trap density has no significant difference. Moreover, the darker color traps catch a significant higher number of weevils as compared to white or light-colored bucket traps.
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